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MULTI-TRACK RIBBON LIFT CONTROL

Publishing Venue

Xerox Disclosure Journal

Abstract

When lifting or lowering the section of ribbon 14 of a ribbon cartridge 10 used for typing, the ribbon 14 tends to follow an arcuate path as shown in Figure 1. It is desirable to maintain the ribbon section fIat during movement instead of arcuate especially when the printing member is a daisy print wheeL

Country

Undisclosed

Language

English (United States)

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XEROX DISCLOSURE JOURNAL

MULTI~TRACKRIBBON LIFT CONTROL Mario G~Plaza

-;~

Proposed Classification U~S~CL 400/211

Int. CL B41j

--/4

I/o

DESIRED

PLANE

OF TRAVEL -~

- -

-~V RELAT~VED~SPLACEMENT

FIG. /

~ FIG, 2

When lifting or lowering the section of ribbon 14 of a ribbon cartridge 10 used for typing, the ribbon 14 tends to follow an arcuate path as shown in Figure 1. It is desirable to maintain the ribbon section fIat during movement instead of arcuate especially when the printing member is a daisy print wheeL

As shown in Figure 2, a pair of complementary configured "crowned" tabs 12 (only one shown) are attached to the ribbon lift guides at opposing ends of the working

section of the ribbon that is used for typing. The angle ~ formed by the crown controls the relative displacement of the ribbon 14 in order to maintain the printing section of the ribbon substantially flat so that movement thereof is confined to a